CN220791878U - Damping damper and steering system with same - Google Patents
Damping damper and steering system with same Download PDFInfo
- Publication number
- CN220791878U CN220791878U CN202322597391.7U CN202322597391U CN220791878U CN 220791878 U CN220791878 U CN 220791878U CN 202322597391 U CN202322597391 U CN 202322597391U CN 220791878 U CN220791878 U CN 220791878U
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- CN
- China
- Prior art keywords
- cylinder
- wall
- boss
- plastic ring
- bosses
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- 238000013016 damping Methods 0.000 title claims abstract description 11
- 239000004033 plastic Substances 0.000 claims abstract description 29
- 230000035939 shock Effects 0.000 claims abstract description 23
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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- Vibration Dampers (AREA)
Abstract
The utility model discloses a shock absorption damper and a steering system with the same, comprising an outer cylinder and an inner cylinder arranged in the middle of the outer cylinder, wherein the inner cylinder is hollow, the outer wall of the inner cylinder is provided with outer bosses distributed along the circumferential direction in an array manner, and an outer groove is formed between two adjacent outer bosses; the inner hole wall of the outer cylinder is provided with inner bosses distributed along the circumferential direction in an array manner, an inner groove is formed between two adjacent inner bosses, a gap is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder, and a plastic ring is embedded in the gap and is in interference fit with the inner cylinder and the outer cylinder; after the outer cylinder, the inner cylinder and the plastic ring are assembled into a whole, the inner boss corresponds to the outer groove, the inner groove corresponds to the outer boss, and the outer end of the outer boss outwards exceeds the inner end of the inner boss between the two adjacent outer bosses and the inner boss. The beneficial effects of the utility model are as follows: the damping and buffering quality can be improved, and the transmission function can be ensured after the rubber fails.
Description
Technical Field
The utility model relates to the technical field of automobile steering, in particular to a shock absorption damper.
Background
The steering system of the automobile is an important part in the automobile, and has the function of controlling the turning direction of the automobile and ensuring the safe and smooth running of the automobile. The steering system of the automobile comprises a steering shaft and a steering gear, wherein the steering shaft is connected with the steering wheel and used for transmitting torque from the steering wheel to the steering gear, so that the steering gear pushes wheels, and the purpose of steering the wheels is achieved.
During the running process of the vehicle, vibration encountered by wheels can be transmitted to a steering wheel through a steering system, so that the experience of a driver is affected. Therefore, in order to buffer the shock feeling transmitted to the steering wheel by the steering system, the comfort of the driver driving the vehicle is improved, and a buffer structure is provided between the steering shaft and the steering gear. In the prior art, the buffer structure is generally a cylindrical rubber shock-absorbing disc, is assembled between the steering shaft and the steering gear in an interference mode, and realizes the buffer shock-absorbing function by means of elasticity of rubber. However, during long use of the automobile, rubber may age, and the aged rubber damper disc may not only deteriorate the damping effect, but also lose the torque transmission function, and there is a risk of malfunction of the steering system.
Disclosure of utility model
Accordingly, one of the objectives of the present utility model is to provide a shock absorbing damper that can improve the shock absorbing and buffering quality and ensure that the rubber has a transmission function after failure.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a shock absorbing damper, comprising:
the inner cylinder is hollow, outer bosses distributed in an array manner along the circumferential direction are arranged on the outer wall of the inner cylinder, and an outer groove is formed between two adjacent outer bosses;
The inner hole wall of the outer cylinder is provided with inner bosses distributed along the circumferential direction in an array manner, an inner groove is formed between two adjacent inner bosses, and a gap exists between the inner wall of the outer cylinder and the outer wall of the inner cylinder; and
The plastic ring is embedded in the gap in an interference manner, the inner side surface of the plastic ring is matched with the outer wall of the inner cylinder, and the outer side surface of the plastic ring is matched with the inner hole wall of the outer cylinder;
after the outer cylinder, the inner cylinder and the plastic ring are assembled into a whole, the inner boss corresponds to the outer groove, the outer boss corresponds to the inner groove, and the outer end of the outer boss exceeds the inner end of the inner boss outwards in the diameter direction.
By adopting the structure, the contact area between the inner wall of the outer cylinder and the plastic ring can be increased by constructing the inner wall of the outer cylinder and the outer wall of the inner cylinder into the wavy structure, and the damping effect and the transmission reliability of the damper are improved. In addition, between two adjacent outer bosses and inner bosses, the outer end of the outer boss outwards exceeds the inner end of the inner boss, when the plastic ring is aged and failed and cannot transmit torque, the outer boss of the inner barrel can still rigidly impact on the inner boss of the outer barrel, so that the damper still has a transmission function,
As preferable: the plastic ring is made of damping rubber.
As preferable: both ends of the plastic ring are provided with annular grooves recessed inwards along the axial direction.
As preferable: the plastic ring is integrally injection molded.
As preferable: the outer cylinder and the inner cylinder are both made of metal materials.
Another object of the present utility model is to provide a steering system, including a steering shaft and a yoke member located at an end portion of the steering shaft, wherein: the shock-absorbing damper is arranged between the steering shaft and the yoke.
As preferable: the upper part of the yoke member is provided with a circular mounting hole, an annular boss circumferentially encircling the hole wall is arranged in the circular mounting hole, the shock absorption damper is arranged in the circular mounting hole, the lower end of the outer cylinder is supported on the annular boss, and the steering shaft is fixedly arranged in the inner cylinder in a penetrating manner.
As preferable: the end part of the yoke piece is provided with radially symmetrical yokes, and two groups of limit grooves are formed between the side parts of the two yokes; the steering shaft penetrates out of the inner cylinder downwards, first gear teeth distributed along the circumferential direction are arranged on the outer wall of the penetrating-out part, a connecting piece is sleeved on the steering shaft corresponding to the first gear teeth, the inner side edge of the connecting piece is provided with second gear teeth meshed with the first gear teeth, the outer end of the connecting piece is provided with two groups of clamping plates extending outwards in the radial direction, and the clamping plates are embedded in the limiting groove.
As preferable: the end part of the first gear tooth is provided with a clamping block protruding outwards, and the connecting piece is supported on the clamping block.
Compared with the prior art, the utility model has the beneficial effects that:
1. by adopting the shock absorption damper provided by the utility model, the contact area between the inner wall of the outer cylinder and the outer wall of the inner cylinder can be increased by constructing the inner wall of the outer cylinder and the outer wall of the inner cylinder into the wavy structure, and the shock absorption effect, the transmission reliability and the torsional rigidity of the damper are improved.
2. After the outer cylinder, the inner cylinder and the plastic ring are concentrically assembled into a whole, the outer end of the outer boss outwards exceeds the inner end of the inner boss, and when the plastic ring is aged and failed and cannot transmit torque, the outer boss of the inner cylinder still can rigidly strike on the inner boss of the outer cylinder, so that the damper still has a transmission function, and the safety coefficient of a steering system is improved.
3. By adopting the steering system provided by the utility model, the end part of the yoke part is provided with the redundant insurance, so that the steering system can be further ensured not to have failure risk after the damping rubber fails.
Drawings
FIG. 1 is a schematic view of a construction of a shock absorbing damper A;
FIG. 2 is a cross-sectional view of a shock absorber A;
FIG. 3 is an exploded view of the shock absorber A;
FIG. 4 is a schematic structural view of a steering system;
fig. 5 is another schematic structural view of the steering system (only showing the connection relationship of the steering shaft 4, the yoke 5 and the shock absorbing damper a);
FIG. 6 is a schematic view showing the connection relationship of the steering shaft 4, the connecting member 6 and the shock absorbing damper A;
FIG. 7 is an exploded schematic view of the steering system (showing only the steering shaft 4, yoke 5 and portions of the shock absorbing damper A);
Fig. 8 is a schematic structural view of the yoke 5.
Detailed Description
The utility model is further described below with reference to examples and figures.
A steering system as shown in fig. 4 comprises a steering shaft 4 and a yoke 5, the steering shaft 4 being intended to be connected to a steering wheel of a motor vehicle and to transmit torque from the steering wheel to the yoke 5 and subsequently from the yoke 5 to a steering gear for steering the wheels. In the running process of the vehicle, vibration encountered by wheels can be transmitted to the steering wheel through the steering system to influence the experience of a driver, so that the damping damper A is further arranged between the steering shaft 4 and the yoke 5, and the effects of damping and transmission can be achieved. As shown in fig. 5, 7 and 8, the upper part of the fork-shaped member 5 is provided with a circular mounting hole 5a, an annular boss 51 circumferentially surrounding the hole wall is arranged in the circular mounting hole 5a, the annular boss 51 is used for supporting the shock-absorbing damper a, and the steering shaft 4 is arranged in the middle of the shock-absorbing damper a in a penetrating manner.
Referring to fig. 1, a shock absorbing damper a includes an outer cylinder 1 and an inner cylinder 2 disposed in the middle of the outer cylinder 1, the inner cylinder 2 having a central through hole 23 for being sleeved on a steering shaft 4, the outer cylinder 1 and the inner cylinder 2 being made of metal materials. As can be seen from fig. 2, a gap a exists between the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 2, and a plastic ring 3 is embedded in the gap a, and the plastic ring 3 is in interference fit with the inner cylinder 2 and the outer cylinder 1. In this embodiment, the plastic ring 3 is made of damping rubber. Further, as shown in fig. 2 and 3, the outer wall of the inner cylinder 2 is alternately provided with outer bosses 21 protruding outwards and outer grooves 22 recessed inwards along the circumferential direction, the inner wall of the outer cylinder 1 is alternately provided with inner bosses 11 protruding inwards and inner grooves 12 recessed towards the cylinder wall direction along the circumferential direction, after the outer cylinder 1, the inner cylinder 2 and the plastic ring 3 are assembled into a whole, the inner bosses 11 correspond to the outer grooves 22, the inner grooves 12 correspond to the outer bosses 21, and the outer ends of the outer bosses 21 outwards exceed the inner ends of the inner bosses 11 between two adjacent outer bosses 21 and the inner bosses 11.
Based on the above structural design, through constructing the inner wall of urceolus 1 and the outer wall of inner tube 2 into wave structure, can increase area of contact and frictional force between both and the plastic ring 3, promote the shock attenuation effect and the driven reliability of attenuator, even under the ageing circumstances of plastic ring 3, the attenuator still has certain transmission ability. Besides, between two adjacent outer bosses 21 and the inner boss 11, the outer end of the outer boss 21 outwards exceeds the inner end of the inner boss 11, and when the plastic ring 3 is aged and failed and cannot transmit torque, the outer boss 21 of the inner barrel 2 still can rigidly strike on the inner boss 11 of the outer barrel 1, so that the damper still has a transmission function, and the safety coefficient of a steering system is improved.
As shown in fig. 3, both ends of the plastic ring 3 have annular grooves 31 recessed inward in the axial direction so as to facilitate the integral injection molding of the plastic ring 3.
Referring to fig. 5 and 7, two sets of radially symmetrical yoke 52 are provided at the lower end of the yoke member 5, and two sets of limiting grooves 53 are formed between the side portions of the two sets of yoke 52. As can be seen in fig. 6 again, the lower end of the steering shaft 4 passes through the central through hole 23 of the inner cylinder 2 downwards, the outer wall of the portion of the steering shaft 4 passing through is provided with first gear teeth 41 distributed along the circumferential direction, the position of the steering shaft 4 corresponding to the first gear teeth 41 is sleeved with a connecting piece 6, the inner side edge of the connecting piece 6 is provided with second gear teeth 61 meshed with the first gear teeth 41, the outer end is provided with two groups of clamping plates 62 extending outwards in the radial direction, and the clamping plates 62 are embedded in the limiting grooves 53. So designed, under extreme working conditions, when the damper breaks, the steering shaft 4 rotates, and the connecting piece 6 at the end part of the steering shaft 4 can still drive the yoke 5 to rotate. Namely, after the damper is completely failed, redundant insurance still exists, the steering system is ensured not to have the risk of failure, and the method has the advantages of high safety and strong practicability.
Further, referring to fig. 6 and 7 again, the ends of the first gear teeth 41 are provided with outwardly protruding clamping blocks 411, and in this embodiment, the clamping blocks 411 have four groups, and the connecting piece 6 is supported on the four groups of clamping blocks 411. In this way, the connecting member 6 can be prevented from falling, so that the connecting member 6 is always stably fitted over the lower end of the steering shaft 4.
Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (9)
1. A shock absorbing damper, comprising:
the inner cylinder (2) is hollow, the outer wall of the inner cylinder (2) is provided with outer bosses (21) distributed along the circumferential direction in an array manner, and an outer groove (22) is formed between two adjacent outer bosses (21);
The outer cylinder (1) is sleeved outside the inner cylinder (2), inner bosses (11) distributed in an array mode along the circumferential direction are arranged on the inner hole wall of the outer cylinder (1), inner grooves (12) are formed between two adjacent inner bosses (11), and a gap (a) exists between the inner wall of the outer cylinder (1) and the outer wall of the inner cylinder (2); and
The plastic ring (3) is embedded in the gap (a) in an interference manner, the inner side surface of the plastic ring (3) is matched with the outer wall of the inner cylinder (2), and the outer side surface of the plastic ring (3) is matched with the inner hole wall of the outer cylinder (1);
After the outer cylinder (1), the inner cylinder (2) and the plastic ring (3) are assembled into a whole, the inner boss (11) corresponds to the outer groove (22), the outer boss (21) corresponds to the inner groove (12), and in the diameter direction, the outer end of the outer boss (21) outwards exceeds the inner end of the inner boss (11).
2. The shock absorber damper according to claim 1, wherein: the plastic ring (3) is made of damping rubber.
3. The shock absorber damper according to claim 1, wherein: both ends of the plastic ring (3) are provided with annular grooves (31) which are recessed inwards along the axial direction.
4. A shock absorber damper according to claim 3, wherein: the plastic ring (3) is integrally injection molded.
5. The shock absorber damper according to claim 1, wherein: the outer cylinder (1) and the inner cylinder (2) are both made of metal materials.
6. Steering system comprising a steering shaft (4) and a yoke (5) at the end of the steering shaft (4), characterized in that: the shock-absorbing damper according to any one of claims 1 to 5 is mounted between the steering shaft (4) and the yoke (5).
7. The steering system of claim 6, wherein: the upper portion of the yoke member (5) is provided with a circular mounting hole (5 a), an annular boss (51) circumferentially encircling the hole wall is arranged inside the circular mounting hole (5 a), the shock absorption damper is mounted in the circular mounting hole (5 a), the lower end of the outer cylinder (1) is supported on the annular boss (51), and the steering shaft (4) is fixedly arranged in the inner cylinder (2) in a penetrating mode.
8. The steering system of claim 7, wherein: the end part of the yoke piece (5) is provided with radially symmetrical yokes (52), and two groups of limit grooves (53) are formed between the side parts of the two yokes (52); the steering shaft (4) downwards penetrates out of the inner cylinder (2), first gear teeth (41) distributed along the circumferential direction are arranged on the outer wall of the penetrating portion, a connecting piece (6) is sleeved on the steering shaft (4) corresponding to the first gear teeth (41), second gear teeth (61) meshed with the first gear teeth (41) are arranged on the inner side edge of the connecting piece (6), two groups of clamping plates (62) extending outwards in the radial direction are arranged at the outer end of the connecting piece, and the clamping plates (62) are embedded in the limiting grooves (53).
9. The steering system of claim 8, wherein: the end part of the first gear tooth (41) is provided with a clamping block (411) protruding outwards, and the connecting piece (6) is supported on the clamping block (411).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322597391.7U CN220791878U (en) | 2023-09-22 | 2023-09-22 | Damping damper and steering system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322597391.7U CN220791878U (en) | 2023-09-22 | 2023-09-22 | Damping damper and steering system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791878U true CN220791878U (en) | 2024-04-16 |
Family
ID=90632854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322597391.7U Active CN220791878U (en) | 2023-09-22 | 2023-09-22 | Damping damper and steering system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791878U (en) |
-
2023
- 2023-09-22 CN CN202322597391.7U patent/CN220791878U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |